Hi Tweets: A while back a Nice Old Broken Down Wildlife Biologist posted the address for the complete species list with "4 letter codes" I made my copy of 31 pages and now the rest of you can avail yourself to the process of making your own. The address is www.pwrc.usgs.gov/bbl/manual/sname.htm and it is still functional as I tried it before writing this note. It came right on so get the paper in the printer. Enjoy.